英語：Unit4LookintoScienceLesson25課件2（冀教版八年級下）

1、Lesson 25 Lets Do an ExperimentAn experiment shows what happens.A theory is an idea.Please fill the jar with water.Lets do an experiment and prove whos right.Please observe carefully what I do.Thats called the scientific method.experiment 實驗；試驗實驗；試驗theory 理論；學(xué)理論；學(xué)說說jar 廣口瓶；廣口瓶；罐子罐子fill 裝滿裝滿upside 上部

2、；上邊上部；上邊prove 證實；證證實；證明明observe 觀察；監(jiān)視觀察；監(jiān)視scientific 科學(xué)的科學(xué)的method 方法；辦法方法；辦法1. Lets do the e and see what happens.2. A “t ” is an idea and predicts what will happen.3. We can p whos right.4. Turn the jar u down and we can see what will happen.5. “O ” is another way of saying “watch carefully”.xperim

3、entheoryrovepsidebserve1.Whats Dannys theory? 2.Whats Brians theory? Danny thinks the floor will get wet. Brian thinks the floor wont get wet.Fill in the blanks with the right words:Danny: What are you doing, Jenny?Jenny: I am doing an experiment.Danny: An experiment? What is it about?Jenny: A theor

4、y about air force (大氣壓力）大氣壓力）. I a jar water. I the jar a piece of cardboard. Then I the jar .Can you guess what .Danny: Im sure that the floor will .Jenny: No, I dont think so.Danny: Why? The cardboard cant keep the water in the jar. Because the air hold the water. Thats called the .fillwithcoverwithturnupsidedownwill happenget wetscientific method 1 2 3 4 5 6 7 8 9